Retractable wheel



FIG. 1 is a perspective view of a retractable wheel showing our newdesign;

FIG. 2 is a top view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is another perspective view thereof; and,

FIG. 7 is a front view thereof.

The broken line showing in FIGS. 1, 2, 3, 5, and 6 is included for thepurpose of illustrating portions of the retractable wheel and forms nopart of the claimed design.

CLAIM The ornamental design for a retractable wheel, as shown anddescribed.